Just take a look at Dean Foods — the best-performing stock in the S&P 500 in the month of May. The American food and beverage company is the largest provider of milk and dairy products in the country — sporting brands like Horizon Organic, Garelick Farms and Land O’Lakes creamers and milk — and obtains 97 percent of its sales from the U.S.

Since early May, the stock has surged roughly 25 percent due to a blowout earnings beat and is up nearly 8.5 percent since Cramer got behind it last Monday. And although he recommended waiting for a pullback, the stock hasn’t flinched once since then.

To learn more about the company’s prospects and to delve deeper into what was perhaps the “best corporate turnaround of the era,” Cramer sat down with Gregg Engles, the chairman and CEO of Dean Foods. Watch the video to see the full interview.